<template>
  <h1>循环指令</h1>
  <ul v-for="item in 5">
    <li>Hello</li>
    <li>World</li>
    <li>World</li>
  </ul>
  <hr>
  <ul>
    <li v-for = "item in 5">{{item}}</li>
  </ul>
  <table border="1">
    <tr>
      <th>商品编号</th>
      <th>商品名称</th>
      <th>商品价格</th>
      <th>商品数量</th>
      <th>操作</th>
    </tr>
    <tr v-for="(item,index) in productArr">
      <td>{{index+1}}</td>
      <td>{{item.title}}</td>
      <td>{{item.price}}</td>
      <td>{{item.num}}</td>
      <td><button @click="del(index)">删除</button></td>
    </tr>
  </table>
</template>

<script setup>
  import {ref} from 'vue';
  const del = (index) => {
    productArr.value.splice(index,1);
  }
  const productArr = ref([
      {title:"小米手机",price:5000,num:100},
      {title:"华为手机",price:6000,num:200},
      {title:"苹果手机",price:7000,num:300},
      {title:"三星手机",price:8000,num:400},
      {title:"OPPO手机",price:9000,num:500}
  ]);
</script>

<style scoped>

</style>